Used PC for media server

[roughnecknine0]

Hi All,

I started with Jellyfin a few short weeks ago and have already decided I'd like to build a dedicated media server. I'm currently running Jellyfin & Tailscale on my personal Windows PC and I think I'd like to move those to an Unraid machine.

Currently I only have 1-2 concurrent viewers watching 1080p with Direct Play but once I have nicer TV's I'd like to move to higher resolutions. I'm also considering opening up to some family and friends so maybe as high as 5 concurrent viewers with higher resolutions at some point in the future. The idea of self hosting other services interests me but the main use will be for Jellyfin.

Unfortunately I don't have any old PC's lying around so I will be looking to buy a new-to-me used PC. I last built my PC about 6-7 years ago so I have some familiarity with hardware but really don't know much. My thoughts/considerations on what I think I'm looking for:

• Non F-type Intel CPU to take advantage of QuickSync
  
• SFF (as opposed to Micro) to have additional RAM/PCI slots
  

PC's I'm looking at:

• $55 - Dell Optiplex 5050 - I5-7600 @ 2.5 GHz - 8GB RAM - 256GB SSD
  
• $60 - HP Elitedesk G2 - I7-6700 @ 3.4 GHz - 8GB RAM- 256GB SSD
  
• $70 - HP Elitedesk G2 - I7-6700 @ 3.4 GHz - 24GB RAM - 256GB SSD
  
• $80 - Dell Optiplex 3070 - I5-9500 @ 3.0 GHz- 8GB RAM - 500 GB unknown
  
• $100 - HP Elitedesk G2 - I7-6700 @ 3.4 GHz - 32GB RAM -256GB SSD
  

Questions

• Jellyfin documentation mentions avoiding 7th-10th gen Intel CPU due to toolkit deprecation. Should I avoid? If so that will limit the used market and increase costs quite a bit.
  
• Does HDD vs SDD for storage matter for my uses?
  
• What else am I not considering? What other recommendations/thoughts do you have?
  

Thank you in advance!